Inspect build size and time

Build Analysis shows build times, large assets, and errors together.

Unity 6.6
Update releaseSupported now
Build Analysis window
Build Analysis window showing build reports

What changed

Unity feature: Build Analysis

Build Analysis brings saved build reports into one window. It shows build duration, output size, cache reuse, errors, and which assets contribute to the result.

Use it

  1. Build the Player, then open Window > Analysis > Build Analysis and select that build.
  2. Use Overview to inspect slow build steps or failures. Use Assets to find large assets and their references.

Requirements and limits

  • Build history records Player and content-directory builds. BuildPipeline.BuildAssetBundles does not populate this history.
All Unity 6.6 features

Launch guide · Reviewed Oct 24, 2026. Images and source material from Unity; rights remain with their owners.

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